Osrs

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Osrs

  1. 1. Contributing to OpenStackUrl: http://www.slideshare.net/itsmeduh/osrsPrepared for: Workshop – Contributing to OpenStackDate: January 24th, 2013
  2. 2. Goal: To contribute a patch to OpenStack (process of signing up as a contributor, editing the code and pushing up changes for review. )
  3. 3. Overview• What is what – OpenStack – Community – Foundation• Contribution process – Adminstrivia – Setting up environment – Getting the code – Fixing the bug
  4. 4. What is What• OpenStack is a collection of open source technologies delivering a massively scalable cloud operating system.
  5. 5. OpenStack Architecture http://rtomaszewski.blogspot.com/2012/11/high-level-openstack-software.html
  6. 6. Simplified OpenStack Architecture Horizon Swift Glance Nova Keystone http://fedorapeople.org/~russellb/openstack-lab-rhsummit-2012/ch01.html
  7. 7. Community and Foundation• Community• Foundation
  8. 8. Overview of the Process• Administrivia – Create Launchpad account – Add SSH key – Sign Contributors License Agreement• Set up environment• Start coding! – Submit Patch for review – Reviewed by core members and members – Patch is merged once approved
  9. 9. AdministriviaLogin details for workshop contributor:OpenStack
  10. 10. 1. Goto https://launchpad.net/ and register -Filing bugs -Tracking blueprints -Mailing lists
  11. 11. 2. Add your SSH key to Launchpad Generating and accessing ssh key * ssh key-gen * cat .ssh/id_rsa.pub
  12. 12. 3. Sign Contributor License Agreement(CLA)http://wiki.openstack.org/CLA
  13. 13. 4. Add your name to contributors in wikihttp://wiki.openstack.org/Contributors
  14. 14. 5. Join https://launchpad.net/~openstack-cla
  15. 15. 6. Add SSH key to http://review.openstack.org
  16. 16. Setting Up the Environment
  17. 17. Setting up the Environment• Install git on your local machine. – sudo apt-get install git-core• Configure Your user name and password: – git config --global user.name "Firstname Lastname" – git config --global user.email "id@gmail.com"• Install git-review tool – On ubuntu: sudo apt-get install git-review – On other unix like systems: pip install git-review – Gerrit is the code review system, that allows us to build a workflow where every change is peer reviewed. http://wiki.openstack.org/GerritWorkflow – Other packages(already installed): * apt-get install python-dev * apt-get install python-virtualenv * apt-get build-dep python-ldap
  18. 18. Getting the code
  19. 19. Getting the CodeClone the repo which has the bug• Nova – git clone git://github.com/openstack/nova.git• Glance – git clone git://github.com/openstack/glance.git• Keystone – git clone git://github.com/openstack/keystone.git
  20. 20. Fixing the bug
  21. 21. Fixing the Bug1. Ensure that git review is configured – cd nova – git review -s – If you get the error "We dont know where your gerrit is.", you will need to add a new git remote. The url should be in the error message. Copy that and create the new remote. • git remote add gerrit ssh://<username>@review.openstack.org:29418/openstack/nov a.git2. Ensure you have the latest code – Git remote update – Git checkout master – Git pull origin master3. Create a topic branch – Git checkout -b bug_topic
  22. 22. Fixing the bug4. Fix the bug5. Run the tests – Hint: sudo apt-get install eatmydata – eatmydata ./run_tests.sh – You may also need: • apt-get install libmysqlclient-dev • apt-get install libxml2-dev • apt-get install libxslt-dev6. Commit the code – Git commit -a – http://wiki.openstack.org/GitCommitMessages7. Submit for review – Git review
  23. 23. Other ResourcesGetting started links:- How to contribute to OpenStack: http://www.slideshare.net/lorinh/how-to-contribute-to-openstack-12716174- How to contribute: http://wiki.openstack.org/HowToContribute- Introduction to OpenStack by Martin Paulo: http://www.scribd.com/doc/117185088/Introduction-to-OpenStack- OpenStack getting started: http://wiki.openstack.org/DevQuickstart- OpenStack nova developer docs: http://nova.openstack.org/devref/index.html- Openstack glance developer docs: http://glance.openstack.org/- OpenStack compute API docs: http://docs.openstack.org/api/openstack-compute/2/content/- Devstack (easy all in one installation of openstack): http://devstack.org/- Video on OpenStack and OpenStack Foundation by Mark Collier: http://www.youtube.com/watch?v=dclcFiVvO7g- Folsom architecture: http://ken.pepple.info/openstack/2012/09/25/openstack-folsom-architecture/- Gerrit workflow: http://wiki.openstack.org/GerritWorkflowOther Misc resources:- Python tutorial: http://learnpythonthehardway.org/book/- Git book: http://git-scm.com/book- Easy bugs: https://bugs.launchpad.net/openstack/+bugs?field.tag=low-hanging-fruit
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